Core faculty biographies
![Core facultyCore faculty Osaf Ahmed, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/az-gme-internal-med-osaf-ahmed.png/_jcr_content/renditions/cq5dam.web.1120.1568.png)
Osaf Ahmed, MD
Core Faculty- Ambulatory Medicine
Specialty: Internal Medicine
Medical School: King Edward Medical College
Residency: Staten Island University Hospital, NY
Chief Residency: Staten Island University Hospital, NY
Fellowship: Primary Care Fellowship Staten Island University Hospital, NY
Professional Awards, Associations, Teaching Appts:
Clinical Assistant Professor of Medicine
University of Arizona COM-Phoenix Rural Medicine Program
"Teaching is my passion. The core of my medical practice involves compassionate listening and mutual decision making for quality patient care. I cannot wait for residents to join our new practice with an open mind and who are willing to learn. I encourage students from all walks of life; we gain our strength from diversity. I enjoy nature and going on hikes."
![Core facultyCore faculty Osaf Ahmed, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/az-gme-internal-med-osaf-ahmed.png/_jcr_content/renditions/cq5dam.web.1120.1568.png)
Osaf Ahmed, MD
Core Faculty- Ambulatory Medicine
Specialty: Internal Medicine
Medical School: King Edward Medical College
Residency: Staten Island University Hospital, NY
Chief Residency: Staten Island University Hospital, NY
Fellowship: Primary Care Fellowship Staten Island University Hospital, NY
Professional Awards, Associations, Teaching Appts:
Clinical Assistant Professor of Medicine
University of Arizona COM-Phoenix Rural Medicine Program
"Teaching is my passion. The core of my medical practice involves compassionate listening and mutual decision making for quality patient care. I cannot wait for residents to join our new practice with an open mind and who are willing to learn. I encourage students from all walks of life; we gain our strength from diversity. I enjoy nature and going on hikes."
![Core facultyCore faculty Tiffany Hosten-Blackmond, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Tiffany%20Hosted%20Blackmond.png/_jcr_content/renditions/cq5dam.web.1120.1602.png)
Tiffany Hosten-Blackmond, MD
Role in Program:
Core Faculty - Associate PD- Ambulatory Medicine- Ambulatory Subspecialty Director
Specialty:
Internal Medicine
Medical School:
Medicine, University of Arizona, College of Medicine, Tucson, AZ
Residency:
St. Joseph's Hospital and Medical Center, Internal Medicine
Board Certifications:
Board certified, American Board of Internal Medicine
![Core facultyCore faculty Tiffany Hosten-Blackmond, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Tiffany%20Hosted%20Blackmond.png/_jcr_content/renditions/cq5dam.web.1120.1602.png)
Tiffany Hosten-Blackmond, MD
Role in Program:
Core Faculty - Associate PD- Ambulatory Medicine- Ambulatory Subspecialty Director
Specialty:
Internal Medicine
Medical School:
Medicine, University of Arizona, College of Medicine, Tucson, AZ
Residency:
St. Joseph's Hospital and Medical Center, Internal Medicine
Board Certifications:
Board certified, American Board of Internal Medicine
![Core facultyCore faculty Samuel Tyler, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/az-gme-internal-med-samuel-tyler.png/_jcr_content/renditions/cq5dam.web.1120.1568.png)
Samuel Tytler, MD
Core Faculty- Ambulatory Medicine
Specialty: Internal Medicine/Family Medicine
Medical School:
Ross University School of Medicine
Residency:
St. Vincent Health, Indianapolis, IN
Combined Internal Medicine and Family Medicine Residency Program
Dr. Samuel Oluwaseun Tytler, a native of Nigeria, moved to Arizona at the age of 12. He went to Central High School in Phoenix and completed his undergraduate education at Arizona State University. He is a Phoenix native at heart. He is board certified in both Internal Medicine and Family Medicine. In addition to practicing holistic medicine, Dr. Tytler has specialized interests in graduate medical education, hospital medicine, adolescent medicine, international medicine, and women's health. He enjoys being outdoors, hiking the Arizona mountains, playing tennis, and spending time with his family.
![Core facultyCore faculty Samuel Tyler, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/az-gme-internal-med-samuel-tyler.png/_jcr_content/renditions/cq5dam.web.1120.1568.png)
Samuel Tytler, MD
Core Faculty- Ambulatory Medicine
Specialty: Internal Medicine/Family Medicine
Medical School:
Ross University School of Medicine
Residency:
St. Vincent Health, Indianapolis, IN
Combined Internal Medicine and Family Medicine Residency Program
Dr. Samuel Oluwaseun Tytler, a native of Nigeria, moved to Arizona at the age of 12. He went to Central High School in Phoenix and completed his undergraduate education at Arizona State University. He is a Phoenix native at heart. He is board certified in both Internal Medicine and Family Medicine. In addition to practicing holistic medicine, Dr. Tytler has specialized interests in graduate medical education, hospital medicine, adolescent medicine, international medicine, and women's health. He enjoys being outdoors, hiking the Arizona mountains, playing tennis, and spending time with his family.
![Core facultyCore faculty Melanie Cloonan Schulte MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-melanie-cloonan-schulte.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Melanie Cloonan-Schulte, MD, FACP
Specialty:
Internal Medicine
Medical School:
Creighton University School Of Medicine
Residency:
St. Joseph's Hospital and Medical Center
Board Certifications:
Internal Medicine
Professional Affiliations:
Fellow of the American College of Physicians
![Core facultyCore faculty Melanie Cloonan Schulte MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-melanie-cloonan-schulte.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Melanie Cloonan-Schulte, MD, FACP
Specialty:
Internal Medicine
Medical School:
Creighton University School Of Medicine
Residency:
St. Joseph's Hospital and Medical Center
Board Certifications:
Internal Medicine
Professional Affiliations:
Fellow of the American College of Physicians
![Core facultyCore faculty Naga Tirumalasetty](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-naga-tirumalasetty.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Naga Nalini Tirumalasetty, MD
Specialty:
Endocrinology
Diabetes & Metabolism
Subspecialty:
Diabetes
Lipid Metabolism
Medical Degree
Gandhi Medical College, Andhra Pradesh, India
Residency
Internal Medicine
University of Arizona, Tucson, AZ
Fellowship
Diabetes and Endocrinology
Ochsner Medical Center, New Orleans, LA
Board Certification
Internal Medicine
Endocrinology
Professional Memberships
Fellow, American College of Endocrinology
American Association of Clinical Endocrinologists
Awards and Recognitions
Top Endocrinologist in Branson (Missouri) in the 417 magazine for 2018
![Core facultyCore faculty Naga Tirumalasetty](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-naga-tirumalasetty.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Naga Nalini Tirumalasetty, MD
Specialty:
Endocrinology
Diabetes & Metabolism
Subspecialty:
Diabetes
Lipid Metabolism
Medical Degree
Gandhi Medical College, Andhra Pradesh, India
Residency
Internal Medicine
University of Arizona, Tucson, AZ
Fellowship
Diabetes and Endocrinology
Ochsner Medical Center, New Orleans, LA
Board Certification
Internal Medicine
Endocrinology
Professional Memberships
Fellow, American College of Endocrinology
American Association of Clinical Endocrinologists
Awards and Recognitions
Top Endocrinologist in Branson (Missouri) in the 417 magazine for 2018
![Core facultyCore faculty Francis Mike Maguire, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-francis-maguire.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
F. Mike Maguire, DO
Specialty:
Pulmonology
Subspecialties:
Critical Care Medicine
Medical School:
Philadelphia College of Osteopathic Medicine
Residency:
Geisinger Health System (Danville)
Fellowship:
New York Medical College at St Vincent's Hospital and Medical Center of New York
Geisinger Health System
Board Certifications:
Internal Medicine
Critical Care Medicine
![Core facultyCore faculty Francis Mike Maguire, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-francis-maguire.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
F. Mike Maguire, DO
Specialty:
Pulmonology
Subspecialties:
Critical Care Medicine
Medical School:
Philadelphia College of Osteopathic Medicine
Residency:
Geisinger Health System (Danville)
Fellowship:
New York Medical College at St Vincent's Hospital and Medical Center of New York
Geisinger Health System
Board Certifications:
Internal Medicine
Critical Care Medicine
![Core facultyCore faculty Rachel Bond, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-rachel-bond.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Rachel Bond, MD, FACC
Specialty:
Cardiology
Areas of Focus:
Echocardiography
Nuclear Cardiology
Preventive Cardiology
Medical School:
NYU Grossman School of Medicine
Residency:
NYU Grossman School of Medicine
Fellowship:
Zucker School of Medicine at Hofstra/Northwell
Board Certifications:
Internal Medicine
Internal Medicine (Sub: Cardiovascular Disease)
Professional Affiliations:
Co-chair of the Women in Cardiology Committee
Chair of the Diversity and Inclusion Committee for the Arizona Chapter of the American College of Cardiology
Women in Cardiology Section Leadership Council for the National Chapter of the American College of Cardiology
Co-Chair of the Women and Children Committee for the Association of Black Cardiologists
![Core facultyCore faculty Rachel Bond, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-rachel-bond.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Rachel Bond, MD, FACC
Specialty:
Cardiology
Areas of Focus:
Echocardiography
Nuclear Cardiology
Preventive Cardiology
Medical School:
NYU Grossman School of Medicine
Residency:
NYU Grossman School of Medicine
Fellowship:
Zucker School of Medicine at Hofstra/Northwell
Board Certifications:
Internal Medicine
Internal Medicine (Sub: Cardiovascular Disease)
Professional Affiliations:
Co-chair of the Women in Cardiology Committee
Chair of the Diversity and Inclusion Committee for the Arizona Chapter of the American College of Cardiology
Women in Cardiology Section Leadership Council for the National Chapter of the American College of Cardiology
Co-Chair of the Women and Children Committee for the Association of Black Cardiologists
![Core facultyCore faculty Anthony Salibi, DO](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-anthony-salibi.jpg/_jcr_content/renditions/cq5dam.web.1120.1545.jpeg)
Anthony Salibi, DO
Role in Program:
Core Faculty - Hospital Medicine
Specialty:
Inpatient Medicine
Medical Degree:
Lake Erie College of Osteopathic Medicine
Residency:
Chief Resident
Regional Medical Center Bayonet Point (RMCBP)
Board Certifications:
Osteopathic Physician and Surgeon License
Professional Affiliations, Awards and Honors:
American Medical Lebanese Association
Anthony Salibi graduated at the Lake Erie College of Osteopathic Medicine and completed his training as chief resident at UCF Bayonet Point in Internal Medicine.
![Core facultyCore faculty Anthony Salibi, DO](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-anthony-salibi.jpg/_jcr_content/renditions/cq5dam.web.1120.1545.jpeg)
Anthony Salibi, DO
Role in Program:
Core Faculty - Hospital Medicine
Specialty:
Inpatient Medicine
Medical Degree:
Lake Erie College of Osteopathic Medicine
Residency:
Chief Resident
Regional Medical Center Bayonet Point (RMCBP)
Board Certifications:
Osteopathic Physician and Surgeon License
Professional Affiliations, Awards and Honors:
American Medical Lebanese Association
Anthony Salibi graduated at the Lake Erie College of Osteopathic Medicine and completed his training as chief resident at UCF Bayonet Point in Internal Medicine.
![Core facultyCore faculty Zachary Burkhart](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-zachary-burkhart.png/_jcr_content/renditions/cq5dam.web.1120.1601.png)
Zachary Burkhart, MD
Role in Program:
Core Faculty - Hospital Medicine
Medical School:
St Georges University School Of Medicine
Residency:
Creighton Alliance Internal Medicine Residency Program
Board Certifications:
American Board of Internal Medicine
Certified in Internal Medicine
Professional Affiliations, Awards and Honors:
"My name is Zachary Burkhart, recently graduated residency and looking forward to helping train the next generation of physicians. I enjoy outdoor activities such as cycling, golfing and offroading with my Jeep."
![Core facultyCore faculty Zachary Burkhart](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-zachary-burkhart.png/_jcr_content/renditions/cq5dam.web.1120.1601.png)
Zachary Burkhart, MD
Role in Program:
Core Faculty - Hospital Medicine
Medical School:
St Georges University School Of Medicine
Residency:
Creighton Alliance Internal Medicine Residency Program
Board Certifications:
American Board of Internal Medicine
Certified in Internal Medicine
Professional Affiliations, Awards and Honors:
"My name is Zachary Burkhart, recently graduated residency and looking forward to helping train the next generation of physicians. I enjoy outdoor activities such as cycling, golfing and offroading with my Jeep."
![Core facultyCore faculty Sher Naidoo, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Sher%20Naidoo.jpg/_jcr_content/renditions/cq5dam.web.1120.1120.jpeg)
Sher Naidoo, MD
Role in program:
Faculty, Inpatient Medicine
Specialty:
Internal Medicine
Medical School:
TheUniversity of Pécs medical school, Pécs, Hungary
Residency:
Midwestern University| Mountain Vista Medical Center, Internal medicine residency
Royal college of surgeons Ireland, National emergency medicine training program
Board Certifications:
Americanboard of internal medicine certified
Arizonamedical board
![Core facultyCore faculty Sher Naidoo, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Sher%20Naidoo.jpg/_jcr_content/renditions/cq5dam.web.1120.1120.jpeg)
Sher Naidoo, MD
Role in program:
Faculty, Inpatient Medicine
Specialty:
Internal Medicine
Medical School:
TheUniversity of Pécs medical school, Pécs, Hungary
Residency:
Midwestern University| Mountain Vista Medical Center, Internal medicine residency
Royal college of surgeons Ireland, National emergency medicine training program
Board Certifications:
Americanboard of internal medicine certified
Arizonamedical board
![Core facultyCore faculty Collins Appiah, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-collins-appiah.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Collins Appiah, MD
Specialty:
Internal Medicine
Subspecialties:
Hospital Medicine/Hospitalist
Medical School:
University of Science and Technology School of Medicine
Residency:
St John's Episcopal Hospital-South Shore
Board Certifications
American Board of Internal Medicine
Certified in Internal Medicine
![Core facultyCore faculty Collins Appiah, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-collins-appiah.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Collins Appiah, MD
Specialty:
Internal Medicine
Subspecialties:
Hospital Medicine/Hospitalist
Medical School:
University of Science and Technology School of Medicine
Residency:
St John's Episcopal Hospital-South Shore
Board Certifications
American Board of Internal Medicine
Certified in Internal Medicine
![Core facultyCore faculty Shyam Patel, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-shyam-patel.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Shyam Patel, MD
Faculty - Hospital Medicine
Specialty:
Hospital Medicine
Medical School:
Doctor of Medicine
Ross University School of Medicine, Dominica, West Indies
Residency:
Internal Medicine
St. Joseph's Hospital and Medical Center
Board Certifications:
American Board of Internal Medicine (ABIM)
Professional Affiliations, Awards and Honors:
![Core facultyCore faculty Shyam Patel, MD](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-shyam-patel.jpg/_jcr_content/renditions/cq5dam.web.1120.1568.jpeg)
Shyam Patel, MD
Faculty - Hospital Medicine
Specialty:
Hospital Medicine
Medical School:
Doctor of Medicine
Ross University School of Medicine, Dominica, West Indies
Residency:
Internal Medicine
St. Joseph's Hospital and Medical Center
Board Certifications:
American Board of Internal Medicine (ABIM)
Professional Affiliations, Awards and Honors:
![Core facultyCore faculty Ashbeel Samuel, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/Samuel,%20Ashbeel.jpg/_jcr_content/renditions/cq5dam.web.1120.1680.jpeg)
Ashbeel Samuel, DO
Role in Program:
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Arizona College of Osteopathic Medicine of Midwestern University
Residency:
Mountain Vista Medical Center, Mesa, AZ
Board Certifications:
Board of Internal Medicine, Certified in Internal Medicine
![Core facultyCore faculty Ashbeel Samuel, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/Samuel,%20Ashbeel.jpg/_jcr_content/renditions/cq5dam.web.1120.1680.jpeg)
Ashbeel Samuel, DO
Role in Program:
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Arizona College of Osteopathic Medicine of Midwestern University
Residency:
Mountain Vista Medical Center, Mesa, AZ
Board Certifications:
Board of Internal Medicine, Certified in Internal Medicine
![Core facultyCore faculty Atikay Nayeem, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Atikat%20Nayeem.JPG/_jcr_content/renditions/cq5dam.web.1120.1400.jpeg)
Atikay Nayeem, MD
Role in Program:
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Eclectic Medicine University Kempegowda Institute Of Medical Sciences
Residency:
Saint Vincent Hospital, Worcester, MA
Board Certifications:
American Board of Medical Specialties American Board of Internal Medicine
![Core facultyCore faculty Atikay Nayeem, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Atikat%20Nayeem.JPG/_jcr_content/renditions/cq5dam.web.1120.1400.jpeg)
Atikay Nayeem, MD
Role in Program:
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Eclectic Medicine University Kempegowda Institute Of Medical Sciences
Residency:
Saint Vincent Hospital, Worcester, MA
Board Certifications:
American Board of Medical Specialties American Board of Internal Medicine
![Core facultyCore faculty Chelsi Scull, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/Chelsi%20Scull.jpg/_jcr_content/renditions/cq5dam.web.1120.1493.jpeg)
Chelsi Scull, MD
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Ross University School of Medicine
Residency:
Maricopa County Medical Center, Internal Medicine Residency
Board Certifications:
American Board of Medical Specialties
American Board of Internal Medicine
![Core facultyCore faculty Chelsi Scull, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/Chelsi%20Scull.jpg/_jcr_content/renditions/cq5dam.web.1120.1493.jpeg)
Chelsi Scull, MD
Core Faculty – Hospitalist
Specialty:
Internal Medicine
Medical School:
Ross University School of Medicine
Residency:
Maricopa County Medical Center, Internal Medicine Residency
Board Certifications:
American Board of Medical Specialties
American Board of Internal Medicine
![Core facultyCore faculty Carmen Liveras, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Carmen%20Oliveras.jpg/_jcr_content/renditions/cq5dam.web.1120.1648.jpeg)
Carmen Oliveras, MD
Specialty:
Inpatient Medicine
Subspecialties:
General Internal Medicine
Hospital Medicine/Hospitalist
Medical Degree
Universidad de Granada Faculty of Medicine
Residency
University of Illinois at Chicago
Board Certification
Internal Medicine
![Core facultyCore faculty Carmen Liveras, Internal Medicine](/content/dam/dignity-health/arizona/gme/faculty/internal-medicine/gme-az-Carmen%20Oliveras.jpg/_jcr_content/renditions/cq5dam.web.1120.1648.jpeg)
Carmen Oliveras, MD
Specialty:
Inpatient Medicine
Subspecialties:
General Internal Medicine
Hospital Medicine/Hospitalist
Medical Degree
Universidad de Granada Faculty of Medicine
Residency
University of Illinois at Chicago
Board Certification
Internal Medicine